Preparation a Polymeric Membrane for Dehydration of Acetic Acid

Mirfarah, Hesam | 2015

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  1. Type of Document: M.Sc. Thesis
  2. Language: Farsi
  3. Document No: 47654 (06)
  4. University: Sharif University of Technology
  5. Department: Chemical and Petroleum Engineering
  6. Advisor(s): Mousavi, Abbas; Bastani, Dariush
  7. Abstract:
  8. The separation ofacetic acids in binary water solutions hasbeenstudied using a reverse osmosis (RO) membrane. Thin film composite polyamide membrane is used in this study.Thin-film composite (TFC) membrane was prepared through the interfacial polymerization between m-phenylenediamine (MPD) and trimesoyl chloride (TMC) on the polysulphone support membrane.The solute permeation was carried out under applied pressure of 5 bar at 25°C. In this work the effect of various synthesis conditions on the membrane performance was investigated. Parametric studies were conducted by varyingconcentration of reactants, reaction time, curing time and curing temperature. By suitable combination of these factors, a desired thin film of polyamide withimproved performance for acetic acid could be obtained. In addition, it was demonstrated that curing process is most important for acetic acid separation. It was shown that curing at 75 °C resulted in an improved membrane performance, due to more cross-linking . The physicochemical characteristics of the membranes thus obtained were determined by infra-red spectroscopy, SEM, AFM and contact angle measurement
  9. Keywords:
  10. Reverse Osmosis ; Structural Parameters ; Composite Membrane Model ; Thin Films ; Interfacial Polymerization ; Acetic Acid ; Dehydration

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